Glass-cutting machine.



WITNESS-IS J. WATERLOO.

Patented Mar. 11, 1919.

2 sIIEIsIs`sIIEET'I.

J. WATERLOO.

GLASS CUTTING MACHINE.

APPLICATION FILED MAY 7, 191B.

Patented Mar. 11, 1919.

2 SHEETS-SHEET 2.

WIAIISES J VAi @TATE FATE@ FFIQE.

JOI-IN WATERLOO, 0F NEW-EAGLE, PENNSYLVANIA, ASSIGNOR TO WINDOW GLASS MACHINE COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.

GLASS-CUTTING MACHINE.

naaasse.

To all whom it may concern.'

Be it k'nown that I, JOHN WATERLOO, a resident of New Eagle, Washington county, Pennsylvania, have invented a new and uscful Improvement in Glass-Cutting Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of a machine embodying my invention;

Fig. 2 is a sectional elevation of a portion of the machine;

Fig. 3 is a detail transverse section;

Fig. 4 is a plan view of the machine; and

Fig. 5 is a partial vertical section.

My invention has relation to glass-cutting machines, and more particularly to a multiple circle cutting machine adapted to simultaneously cut a plurality Of circular pieces.

The object of my invention'is to provide a simple, convenient and readily operated machine of this character having full capability of adjustment to meet the requirements of machines bf this character.

The nature ofmy invention will be best understood by reference to the accompanying drawings, in which I have shown the preferred embodiment thereof and which will now be described, it being premised, however, that various changes may be made in the details of construction, arrangement and combination of thevarious parts, without departing from the spirit and scope of my invention as defined in the appended claims. v

In these drawings, the numeral 2 designates a suitable base having secured thereto an overhanging bracket arm 3, whose outer end portion is provided with upper and lower vertically alined bearings 4 and 5, for a vertical shaft 6. rIhis shaft is mounted in said bearings for rotation and also for limited vertical movement. The extent .of its downward movement is limited by the collar 7, and the shaft is normally pressed upwardly by means of a helical spring 8, seated on the shaft between the upper and lower bea-rings, its lower end seating against the bracket and its upper end against a collar 9 on the shaft. This collar 9 also limits the upward movement of the shaft.

The numeral 10 designates a circle plate which is formed with a plurality of arcuate slots 11. rFhis plate is held at one side by Specification of Letters Patent.

Iatented Mar. 11, 1919.

Application led May 7, 1918. Serial No. 233,086.

member 17, extending downwardly with a head 18 at its upper end seating upon the upper surface of the circle plate. This sleeve is externally threaded to receive the clamping and jam nuts 19, and also the adjustable collar 20. Journaled in each of the sleeve members is a cutter shaft 21, having a hori-v zontal socket portion 22, at its lower end adapted to receive and seat therein the shank 23 of a cutter holder 24, carrying a suitable cutting tool 25. A spring 26 is interposed between the adjustable collar 2O and the socket portion 22 of the shaft 21.

Rigidly secured to the upper end portion of each of the shafts 21 is a pinion 27, whose teeth mesh with the teeth of a broader faced pinion 28, secured to the lower end portion of the shaft 6.

By loosening the clamping nuts 19, the sleeve members 17 and shafts 21 can be ad justed lengthwise of the slots 11, as may be desired.

The spring 8 acts to normally hold the shaft 6 in its raised position and this also holds the circle plate 10 and the cutting devices carried thereby in raised position, the bolt or stud 14; being vertically movable in the bracket arm. The springs 26 also act to normally hold the cutting toolsout of cutting position, and give the said tools a vertically yieldable mounting.

In use,I the operator bears downwardly on the handle 29 attached to the upper end of the shaft 6, and at the same time turns the handle to rotate the shaft. This downward pressure brings the'cutting tools into cutting contact with the glass sheet to be cut, and as the shaft is rotated, the gear wheel 28 is actuated to rotate the series of pinions 27, and thereby the several cutter shafts. As will readily be seen, the respective cutting tools will describe circles in about the axes of their respective shafts 21 and will cut circles of corresponding radii. The cutting radius of each tool may be readily changed by adjusting the shank of the tool carrier in its socket 22. The tool carrier can also be adjusted by securing it in differentv rotated positions on the shaft 23 to thereby vary the cutting angle of the point of the tool.

The stop collar 9 is shown as being provided with projections 30, which engage the bracket arm 3 to prevent the collar from ro'- Jjating with the shaft. This is best shown in The advantages of my invention will be apparent to those skilled in the art, since it provides a simple. and eicient machine by which glass circles may be rapidly and accurately cut.

I claim:

1. A multiple circle glass-cutting machine, comprising a rotatable shaft, a gear wheel carried thereby, and a lplurality of cutter shafts mounted around said gear wheel and having pinions meshing therewith, each of said shafts having a socket at its lower portion, and a cutter carrier mounted in said socket and extending radially with respect to the shaft, substantially as described.

2. A multiple circle glass-cutting machine, comprising a vertical shaft having a vertically yielding mounting, a gear wheel secured to said shaft, a circle plate supported by said. shaft, a plurality of cutter shafts mounted in said circle'plate, and pinions cari ried by the cutter shafts and meshing with said gear wheel, substantially as described.

3. A multiple circle glass-cutting machine, comprising a vertical shaft mounted for both radial and vertical movements, spring means acting upon said shaft to hold it in a relatively raised position, a gear wheel carried by said shaft, a circle plate having a plurality of arcuate slots therein, and cutter shafts adjustably mounted in said slots and carrying pinions meshing with said gear wheel, each of saidcutter shafts having a cutting tool, substantially as described.

4. A multiple circle class-cutting machine, comprising a vertical shaft with a gear wheel carried thereby, and a plurality of vertical a socket at its lower end portion and a horizontally extending cutter carrierl adjustably mountedV in said socket portion, substantially as described.-

5. A multiple circle glass-cutting machine,

comprising a frame member, a shaft rotatably mounted in said frame member and also vertically movable in its mountings, a spring normally holding'the shaft in a relatively raised position, and a plurality of vertical cutter-actuating shafts geared to the first named shaft, substantially as described.

6. A multiple circle glass-cuttingr machine, comprising a frame member, a shaft rotatably mounted in said frame member and also vertically movable in its mountings, a spring normally holding the shaft in a relatively raised position, and a plurality of vertical cutter-actuating shafts geared to the first named shaft, each of the cutter shafts being adjustable about the axis of the first named shaft, substantially as described.

7. A multiple circle glass-cutting machine, comprising a frame member, a. shaft rotatably mounted in said frame member and also vertically movable in its mountings` a spring normally holding the shaft in a relatively raised position, and a plurality of ver tical cutter-actuating shafts geared to the first named shaft, each of said cutter shafts having a vertically yieldable mounting, substantially as described.

S. A multiple circle glass-cutting machine, comprising a fixed support, a rotatable shaft j ournaled therein, a plurality of cutter shafts having their axes substantially parallel to the first named shaft and geared thereto, and a radially extending cutter carrier secured to each of the cutter shafts and carrying a cutter adapted to cut in a circular path around the axis of its said shaft; substantially as described.

In testimony whereof, I have hereunto set my hand.

AJOHN IVATERLOO, 

